Circuit breaker



' NOV. 8,1932. c o o 1,886,790

CIRCUIT BREAKER Origihal Filed Jan. 6, 192a Quiet/mug Patented Nov. 8 1932.

zfomrso sures new cones Y ron-snow nnroenm or new on;

cm ir R AKER Application filedlanuaiyfi; 192, S8ria1'No.w944 89 5. Renewed hemmed;

This invention relates to code teach ng d vices and more particularly to a circuit closing means therefor.

' An object of the invention is to provide a circuit closer which is simple in const uc-v tion and efficient in operation;

Another object of the invention is to provide a-circuit-closer which can be Operated by a perforated tape.

A further object of the invention is to provide a cirouitzcloser of such shape end construotion that the tape will be subjected'to a minimum amount of Wear and the danger of tearingwill be eliminated.

A still further object of the invention i to providemeans for feeding the tape in a fore ward direction. I r 4 A still further object of the invention is o provideineans for lifting and holding the circuit closer and the forwa d f eding m ans out lei-contact with. the tape to permit the tape to be moved in a rearward direction,

Astill further object of the invention is to provide easily operated means for accui retely adjusting the gap in the circuit closer.

With the above and other objects in view which Will appear as the description proveeds, the invention resides in the combine.- tion and arrangement of parts end in the de- 30 tails of construction hereinafter described and claimed, it being understood that changes in'the precise embodiment of the inventi n hereinndisolosed, may-be made Within th scope of what is claimed, Without departing from the spirit of the invention.

In the accompanying drawing, forming a port of this specification, and in which like numerals are employed to designate like parts throughout the same:

Figure 1 is a Vertical longltndinals tion ofthe present invention,

Figure 2 is averticol cross-section on the line "2+2 of Figure l, I

Figure 3 is a horizontal section on the line of Figure 1,. it

F 'ul-e 4 is an enlarged detail view oiv the anti-fiction bearings for supporting the v circuit closing lever,

F1gure5 is an enlarged ,QlBlJELllJVlGW-Df one 350 end of the circuit closing lever andthe tape support showing the perforated tape passin therebetween, and, e w 5 Figure 6 is a similar viewon he line 6*6 ofFigureot c -v In the d awing, wh rein. for: the p rpose of illustration is shown apreie rod embod lnont of my invention, the numeral 1 d s gahonsing wherein .the' arioos elem nts f the devi e. are assembled. a

i A suppo ting plate se ur d th housing arr es on its ide atape gui At o e end heolipp r i Proti led with dep nding lugs e Wh oh r cei e u ing e ements sofa tepe supp rt-oi- I A t pe 7 h ving p rforat o s 8 in the fo m of code signals is used and forthe purposc of ui ing said tape it n tch 9 i ont in t tape support 6, Guides 0 nd llo e. further provi ed to carry the tape 7 t 1 1 housing 1; i

i y indr oelioeding r r its Upright lugs 21 are for-rned'on the sup; I

Porting Plots 2 an arryadinsteb1e on ifri tion l eering hiohr o i e the .p inted nd 2 fltrunnio s 2i secured .to a

ni 'ol s ng lo as clea ly hown n Fig 7 ure 4 of the drawing. 1

Th ircu t closing lev r 25 on end 26 bent a right angle and dis-posed enemy abo th opi support 6 a d is'adapte to. h l w wardly against the p forated tep 7 and receive motion therefrom asthe said tape mo es fo wardly be ween the en 26 of the leve 2.5 and th ops uppor -6.

The end 26 o the eon act ev r 25' i shap d as shown in the droning so as o pass ove t e tap 7 Without injury the eto as h r inbef rostated. J 1 i-- A vertical support 29 rises from the supporting plate 2 and carries a block of insulating material 30. The vertical support'29" carries a guide 31 which receives a contact.

screw 32. The guide 31 is insulated from the vertical support 29 and serves to carry ,an'

electrical current from the screw 32 to a conductor as'will soon be brought'out.

A U-shaped bearing plate 33 is mounted on the block of insulation 30 and receives the shaft 34 of a worm 35 which meshes with a worm-wheel 36 on the contact screw 32 to reg ulate the gap between the contact point 28 on the end 27 of the circuit-closing lever and a contact point 37 on the contact screw 32. The shaft 34 is provided with a fingerengaging piece 38 outwardly of the housing 1 whereby adjustment of the contact points 28 and 37 is secured. This adj ustment'is very slight'and it has been found in practice that the worm and the worm-wheel 36 remain in engagement throughout the entire range of movement. 1 r

In order to hold the end 26 of the circuit closing lever 25 in Contact with the perforated tape at all times a spring 39 issecured to the lever 25 and to a tension regulating screw 40 threaded in the block of insulation 30.

After the perforated tape 7 has passed through the device and the user wishes to repeat the lesson a thumb-screw-4l is rotated.

The thumb-screw 41 is screw threaded in the end of the housing 1 adjacent to the feeding rollers 12 and 16 and bears against a plate 42 secured to a rock shaft 43. Levers 44 and 45 are secured to the rock shaft 43 and extend under the trunnions 18 of the spring-pressed roller '16. The lever 45 is longer than the lever 44 and is-extended backwardly andat a right angle as shown at 46 under the circuit closing lever 25. Y Y

Any suitable form of telegraphic sounder and battery not shown may be connected to the present invention and the current led therefrom to the device as will now be described.

The circuit includes the conductor 47, the bearing 22, the trunnion 24, the circuit-closing lever 25, the contact point 28, the contact point 37, the contact screw 32, the guide 31 and the conductor 48.

The operation of the device is as follows:

The perforated tape 7 is threaded into the guide 3 and over the tape support 6, between the feeding rollers 12and' 16 and out through the guide 10. The gap between the contact points 28 and 37 is adjusted by means of the finger piece 38 on the shaft 34 of the worm 35 and the device is ready for use.

When the user wishes to rewind the tape 7 he operates the thumb-screw 41 which bears against the plate 42 and rocks the rock shaft 43 carrying with it the levers 44 and 45 thus raising the feed roller 16 and-the end 26 of the lever 25 off of the tape and holding it in elevated position until the tape is reversed a desired distance. 8

Having thus described my invention, I claim:

'1. Ai device of the classdescribed including a horizontalmain support, upright lugs on said support receiving anti-friction bearings, a circuit closing lever. having. anti-friction trunnions mounted in said bearingsfa cylindrical tape support carried by the main support and located below the forward end of the circuit closing lever, said cylindrical tape support having a groove. for guiding the tape toward thesaid end of the circuitclosing lever, said forward end of'the leverbeing roundedto reduce friction and wear on the perforated tape," an adjusting spring connected to the lever at a point between itspivot and the opposite end of the lever for-maintaining the rounded end in constant engagement with the tape and tape support, an electrical contact at the said opposite end of the lever, a stationary contact carried by the main support cooperating with the first mentioned contact, a forward feedingmechanism for the tape comprising a fixed motor actuated roller and a spring pressed roller normally in engagement therewith, meansfor disengaging the circuit closing lever and spring pressed roller out of contact with thetape to permit a reverse movement thereof, said means comprising a rock shaft, a plate on the rock shaft, a thumb screw engaging the plate to move the rock shaft on its axis, a pair of levers attached to the rock shaft and engaging the movable roller, one of said levers havatra'nsmitting lever adapted to be actuated by tapes of various thickness, said tapes bearing indications corresponding to characters ofa telegraphic code, sald lever having antifriction trunnions mounted in antl-friction bearings, one end of said lever having contact means associated therewith to close or open an electric circuit when said lever is actuated by a tape, said means of contact being adjustable to permit the lever to utilize a desired amount of the thickness of the tape to operate said lever.

4. A device of the class described including a transmitting lever adapted to be actuated directly by tapes of various thickness bearing indications corresponding to characters of a telegraphic code, said lever having anti-trio tion trunnions mounted in anti-friction bearings, an electric contact cooperating With one end of the lever permits the closing or opening of an electric circuit when the lever is actuated by a tape.

In testimony whereof I aflix my signature.

MARCELLO CENTORRINO. 

